8. Bottlenose dolphin – Believe it or not -- that's the face of a predator.

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World's 20 cutest wild creatures -- and where to find them20 photos

7. Alpaca – The animal kingdom's answer to the Biebs -- the cuteness is all in the hair.

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World's 20 cutest wild creatures -- and where to find them20 photos

6. Bee hummingbird – A bird that's the size of most other birds' meals.

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World's 20 cutest wild creatures -- and where to find them20 photos

5. Sea otter – If you can look cute while eating, you know you're winning.

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World's 20 cutest wild creatures -- and where to find them20 photos

4. Harp seal – So cute, all it needs is a head.

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World's 20 cutest wild creatures -- and where to find them20 photos

3. Giant panda – Undeniably adorable -- unless you're a bamboo tree.

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World's 20 cutest wild creatures -- and where to find them20 photos

2. Philippine tarsier – What they lack in size, they make up in cute.

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World's 20 cutest wild creatures -- and where to find them20 photos

1. Fennec fox – World's least scary Cerberus.

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Look at these baby pandas! – It's a panda in a blanket! Panda "A" has darker markings and a narrower band. That's one way the zoo can tell the twins apart.

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Look at these baby pandas! – The twins hang out in a rare moment together. One is usually with mom. She can only care for one at a time, so they switch every four hours.

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Look at these baby pandas! – The panda nursery is a "bio secure zone." Even the tripod got booties.

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Look at these baby pandas! – Panda "A" gets weighed. He's the more vocal of the two brothers, making purring noises like a cat at one point.

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Look at these baby pandas! – Panda "A" gets measured.

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Look at these baby pandas! – Guests to the zoo can expect to see the pandas in person this fall.

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Look at these baby pandas! – Panda "A" snoozes away after his exam. The cubs are kept at about 78 degrees inside the incubator when not with their mother, much lower than the 98 degrees they were kept in when they were first born.

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Look at these baby pandas! – This was as close as CNN could get to the little guy once the exam was finished. Machado asked if she could hold him but the staff said no.

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Look at these baby pandas! – Look! It's a panda getting petted.

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Look at these baby pandas! – Dad Yang Yang is alone, away from mom and babies.

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The name of the female cub will be announced 100 days after the birth, per Chinese tradition.

At birth, the cub -- which was about the size of a stick of butter -- did well and the mother could be seen cradling it in her den at the National Zoo.

But the next day, Mei Xiang gave birth to a second cub, which was stillborn. The mama panda groomed the cub for 17 minutes before it fell onto the floor of the den motionless, a zoo spokeswoman said.

Mei Xiang was artificially inseminated by sperm from two different pandas, zoo officials said. One was Tian Tian, and the other potential father was Gao Gao, a 20-plus years old, 174-pound giant panda from the San Diego Zoo.